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Yeastar Expansion Module S2


Technical Specifications

Feature Specification
Ports 2 x RJ11 (FXS)
Interface Analog Internal Extension
Ring Voltage 55V RMS (Typical)
Loop Current 20mA (Typical)
Echo Cancellation ITU-T G.168 LEC
Compatibility (S-Series) S20, S50, S100, S300, S412
Compatibility (P-Series) P550, P560, P570 (via EX08/EX30 Expansion Boards)
Signaling FXS Loop Start
Dimensions 50 x 35 mm (Compact Internal Module)

Ideal For:

  • Hospitality & Hotels: Perfect for connecting analog guestroom phones to a modern IP-PBX system without the need for expensive rewiring or IP handsets in every room.

  • Legacy Fax Integration: The most reliable way to connect a physical fax machine to your office network, ensuring stable document transmission over your VoIP system.

  • Cordless Mobility: Easily connect an analog cordless phone base (like a Gigaset or Panasonic) to the S2 port to give your staff mobile freedom around the office or warehouse.

  • Budget-Conscious Upgrades: Ideal for businesses moving to VoIP who want to phase in IP phones slowly while keeping existing analog sets operational.

The Yeastar S2 Module is a high-performance expansion component designed to add analog internal extension connectivity to your Yeastar S-Series or P-Series PBX. Featuring two FXS (Foreign Exchange Station) ports, the S2 module allows your modern VoIP system to drive traditional analog telephones, cordless DECT phones, or legacy fax machines. This is an essential hardware upgrade for businesses that want to enjoy the power of an IP-PBX while continuing to use their existing, high-quality analog hardware.

Each S2 module provides two RJ11 ports, allowing you to connect up to two physical analog devices directly to your PBX as internal extensions.

Features advanced line echo cancellation (LEC) to ensure that voice transmission between analog devices and the digital PBX remains crisp, clear, and professional.

SKU: S2 Categories: , Tags: , , Brand:

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